private DefaultPortableReader CreateReader(IBufferObjectDataInput input, int factoryId, int classId, int version,
int portableVersion)
{
var effectiveVersion = version;
if (version < 0)
{
effectiveVersion = _context.GetVersion();
}
var cd = _context.LookupClassDefinition(factoryId, classId, effectiveVersion);
if (cd == null)
{
var begin = input.Position;
cd = _context.ReadClassDefinition(input, factoryId, classId, effectiveVersion);
input.Position = begin;
}
DefaultPortableReader reader;
if (portableVersion == effectiveVersion)
{
reader = new DefaultPortableReader(this, input, cd);
}
else
{
reader = new MorphingPortableReader(this, input, cd);
}
return(reader);
}
internal IClassDefinition Register(IClassDefinition cd)
{
if (cd == null)
{
return(null);
}
if (cd.FactoryId != _factoryId)
{
throw new SerializationException("Invalid factory-id! " + _factoryId + " -> " + cd);
}
if (cd is ClassDefinition cdImpl)
{
cdImpl.SetVersionIfNotSet(_portableContext.GetVersion());
}
var versionedClassId = CombineToLong(cd.ClassId, cd.Version);
var currentCd = _versionedDefinitions.GetOrAdd(versionedClassId, cd);
if (Equals(currentCd, cd))
{
return(cd);
}
if (currentCd is ClassDefinition)
{
if (!currentCd.Equals(cd))
{
throw new SerializationException(
"Incompatible class-definitions with same class-id: " + cd + " VS " + currentCd);
}
return(currentCd);
}
_versionedDefinitions.AddOrUpdate(versionedClassId, cd, (key, oldValue) => cd);
return(cd);
}